diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 04a5f44..24e9a10 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,6 +6,9 @@ on:
   pull_request:
     branches: [main, master]
 
+permissions:
+  contents: read
+
 env:
   CARGO_TERM_COLOR: always
 
diff --git a/.github/workflows/scheduled.yml b/.github/workflows/scheduled.yml
index fec52c1..0dfdf62 100644
--- a/.github/workflows/scheduled.yml
+++ b/.github/workflows/scheduled.yml
@@ -5,6 +5,9 @@ on:
     - cron: "0 6 * * *" # Daily at 6:00 UTC
   workflow_dispatch: # Allow manual trigger
 
+permissions:
+  contents: read
+
 env:
   CARGO_TERM_COLOR: always